These are good suggestions too clouddriver. My biggest problem is that in order to maximize our time in the Black Hills, we are trying to make this trip in one day. So I may not have much of a choice but to travel some interstate in order to make up for some of the time we spend on the slower two lane highways. Plus we aren't as young as we used to be, so extra stops to stretch and give the butt a break will be a must! The days when I could drive 24 hours to get home like when I was in the Navy are just a distant memory! Having said that, I'm hoping we might have the option of leaving here late afternoon on Friday and get a few hours head start. That will allow us to take our time on Saturday and not have to be in any hurry.